diff --git a/src/music_kraken/database/objects/source.py b/src/music_kraken/database/objects/source.py
index 269f41f..665ec76 100644
--- a/src/music_kraken/database/objects/source.py
+++ b/src/music_kraken/database/objects/source.py
@@ -21,6 +21,14 @@ class SourcePages(Enum):
     GENIUS = "genius"
     MUSICBRAINZ = "musicbrainz"
     ENCYCLOPAEDIA_METALLUM = "encyclopaedia metallum"
+    BANDCAMP = "bandcamp"
+    DEEZER = "deezer"
+    SPOTIFY = "spotify"
+
+    # This has nothing to do with audio, but bands can be here
+    INSTAGRAM = "instagram"
+    FACEBOOK = "facebook"
+    TWITTER = "twitter" # I will use nitter though lol
 
     @classmethod
     def get_homepage(cls, attribute) -> str:
@@ -29,7 +37,13 @@ class SourcePages(Enum):
             cls.MUSIFY: "https://musify.club/",
             cls.MUSICBRAINZ: "https://musicbrainz.org/",
             cls.ENCYCLOPAEDIA_METALLUM: "https://www.metal-archives.com/",
-            cls.GENIUS: "https://genius.com/"
+            cls.GENIUS: "https://genius.com/",
+            cls.BANDCAMP: "https://bandcamp.com/",
+            cls.DEEZER: "https://www.deezer.com/",
+            cls.INSTAGRAM: "https://www.instagram.com/",
+            cls.FACEBOOK: "https://www.facebook.com/",
+            cls.SPOTIFY: "https://open.spotify.com/",
+            cls.TWITTER: "https://twitter.com/"
         }
         return homepage_map[attribute]
 
@@ -89,16 +103,33 @@ class SourceAttribute:
     it adds the source_list attribute to a class
     """
     _source_dict: Dict[object, List[Source]]
+    source_url_map: Dict[str, Source]
 
     def __new__(cls, **kwargs):
         new = object.__new__(cls)
         new._source_dict = {page_enum: list() for page_enum in SourcePages}
+        new.source_url_map = dict()
         return new
 
+    def match_source_with_url(self, url: str) -> bool:
+        """
+        this function returns true, if a source with this url exists,
+        else it returns false
+        :param url:
+        :return source_with_url_exists:
+        """
+        return url in self.source_url_map
+
+    def match_source(self, source: Source) -> bool:
+        return self.match_source_with_url(source.url)
+
     def add_source(self, source: Source):
         """
         adds a new Source to the sources
         """
+        if self.match_source(source):
+            return
+        self.source_url_map[source.url] = source
         self._source_dict[source.page_enum].append(source)
 
     def get_sources_from_page(self, page_enum) -> List[Source]:
diff --git a/src/music_kraken/pages/encyclopaedia_metallum.py b/src/music_kraken/pages/encyclopaedia_metallum.py
index 94804f7..2b8bdfc 100644
--- a/src/music_kraken/pages/encyclopaedia_metallum.py
+++ b/src/music_kraken/pages/encyclopaedia_metallum.py
@@ -200,10 +200,10 @@ class EncyclopaediaMetallum(Page):
         )
 
     @classmethod
-    def add_dicography(cls, artist: Artist, ma_artist_id: str) -> Artist:
+    def fetch_artist_discography(cls, artist: Artist, ma_artist_id: str) -> Artist:
         """
         TODO
-        I'd guess this funktion has quite some posibility for otimizations
+        I'd guess this funktion has quite some possibility for optimizations
         in form of performance and clean code
         """
         discography_url = "https://www.metal-archives.com/band/discography/id/{}/tab/all"
@@ -217,16 +217,18 @@ class EncyclopaediaMetallum(Page):
                 album_by_url[source.url] = album
         old_discography = artist.main_albums.copy()
         # save the ids of the albums, that are added to this set, so I can
-        # efficiently add all leftover albums from the discograpy to the new one
+        # efficiently add all leftover albums from the discography to the new one
         used_ids = set()
 
         new_discography: List[Album] = []
-        
+
+        # make the request
         r = cls.API_SESSION.get(discography_url.format(ma_artist_id))
         if r.status_code != 200:
             LOGGER.warning(f"code {r.status_code} at {discography_url.format(ma_artist_id)}")
             return artist
 
+        # parse the html
         soup = BeautifulSoup(r.text, 'html.parser')
 
         tbody_soup = soup.find('tbody')
@@ -264,11 +266,27 @@ class EncyclopaediaMetallum(Page):
             
             new_discography.append(album_obj)
 
+        # add the albums back, which weren't on this page
         for old_object in old_discography:
             if old_object.id not in used_ids:
                 new_discography.append(old_object)
 
         artist.main_albums = new_discography
+
+        return artist
+
+    @classmethod
+    def fetch_artist_sources(cls, artist: Artist, ma_artist_id: str) -> Artist:
+        sources_url = "https://www.metal-archives.com/link/ajax-list/type/band/id/{}"
+
+        # make the request
+        r = cls.API_SESSION.get(sources_url.format(ma_artist_id))
+        if r.status_code != 200:
+            LOGGER.warning(f"code {r.status_code} at {sources_url.format(ma_artist_id)}")
+            return artist
+
+        print(r.text)
+
         return artist
 
     @classmethod
@@ -297,6 +315,9 @@ class EncyclopaediaMetallum(Page):
         # SIMPLE METADATA
 
         # DISCOGRAPHY
-        artist = cls.add_dicography(artist, artist_id)
+        artist = cls.fetch_artist_discography(artist, artist_id)
+
+        # External Sources
+        artist = cls.fetch_artist_sources(artist, artist_id)
 
         return artist
diff --git a/src/test.db b/src/test.db
index 500c5cd..42f1005 100644
Binary files a/src/test.db and b/src/test.db differ